Electromagnetic wave reflecting device and electromagnetic wave reflecting fence

Abstract

The electromagnetic wave reflecting device includes: a reflection panel that reflects a radio wave of a desired band selected from a frequency band between 1 GHz and 170 GHz; and a frame that holds the reflection panel. The frame has a conductive portion. The reflection panel is held by the frame so that an edge of the reflection panel is not exposed to an outside of the frame. At least a part of the conductive portion of the frame is covered with a non-conductive protecting member or protective coating.

1 . An electromagnetic wave reflecting device, comprising:
 a reflection panel that reflects a radio wave of a desired band selected from a frequency band between 1 GHZ and 170 GHz; and   a frame that holds the reflection panel, wherein   the frame has a conductive portion,   the reflection panel is held by the frame so that an edge of the reflection panel is not exposed to an outside of the frame, and   at least a part of the conductive portion of the frame is covered with a non-conductive protecting member or protective coating.   
     
     
         2 . The electromagnetic wave reflecting device according to  claim 1 , wherein
 a conductive facing surface that faces the edge in an inside of the frame is covered with the protecting member or the protective coating.   
     
     
         3 . The electromagnetic wave reflecting device according to  claim 1 , wherein
 a conductive facing surface that faces the edge in an inside of the frame is not covered with the protecting member or the protective coating.   
     
     
         4 . The electromagnetic wave reflecting device according to  claim 1 , wherein
 the frame includes a conductive main body, a slit into which the reflection panel is inserted, and a cavity communicating with the slit, and   an outer surface of the main body and the slit are covered with the protective coating.   
     
     
         5 . The electromagnetic wave reflecting device according to  claim 4 , wherein
 the reflection panel is held in the slit in a state in which the edge of the reflection panel is in contact or not in contact with a base surface of the cavity.   
     
     
         6 . The electromagnetic wave reflecting device according to  claim 5 , wherein
 the main body has a hollow that is separated from the slit and the cavity.   
     
     
         7 . The electromagnetic wave reflecting device according to  claim 1 , wherein
 the frame includes a conductive main body, a slit into which the reflection panel is inserted, a cavity communicating with the slit, and a groove formed in the cavity,   a base surface of the groove is a facing surface facing the edge, and   an outer surface of the main body and the slit are covered with the protective coating.   
     
     
         8 . The electromagnetic wave reflecting device according to  claim 7 , wherein
 the reflection panel is held by the slit in a state in which the edge is in contact or not in contact with the base surface of the groove.   
     
     
         9 . The electromagnetic wave reflecting device according to  claim 8 , wherein
 the main body has a hollow that is separated from the cavity and the groove.   
     
     
         10 . The electromagnetic wave reflecting device according to  claim 1 , wherein
 the frame includes a conductive main body and a non-conductive cover provided on an outer surface of the main body.   
     
     
         11 . The electromagnetic wave reflecting device according to  claim 10 , wherein
 a part of an outer surface and an inner wall of the main body are covered with the protective coating, and   the non-conductive cover is bonded to the protective coating covering the outer surface of the main body.   
     
     
         12 . An electromagnetic wave reflecting fence being formed by joining a plurality of the electromagnetic wave reflecting devices of  claim 1  in a width direction of the frame, wherein
 each of two adjacent reflection panels is held by the frame in a state in which an edge of the reflection panel is in contact or not in contact with a facing surface facing the edge in an inside of the frame.